Home / 623,756,279.80-934,626,650.10-393,312,964.60

Finding the Fourth Proportional to 623,756,279.80, 934,626,650.10 and 393,312,964.60

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Solution

The fourth proportional to 623,756,279.80, 934,626,650.10 and 393,312,964.60 is: 589,333,992.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,756,279.80 : 934,626,650.10 = 393,312,964.60 : x
  2. Step 2: Convert to fraction form
    623,756,279.80/934,626,650.10 = 393,312,964.60/x
  3. Step 3: Cross multiply
    623,756,279.80x = 934,626,650.10 × 393,312,964.60
  4. Step 4: Simplify right side
    623,756,279.80x = 367,600,778,544,997,888
  5. Step 5: Solve for x
    x = 367,600,778,544,997,888/623,756,279.80
  6. Step 6: Final answer
    x = 589,333,992.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.